Pronunciation: (sek'yu-lur), [key] —adj. 1. of or pertaining to worldly things or to things that are not regarded as religious, spiritual, or sacred; temporal: secular interests. 2. not pertaining to or connected with religion (opposed to sacred): secular music. 3. (of education, a school, etc.) concerned with nonreligious subjects. 4. (of members of the clergy) not belonging to a religious order; not bound by monastic vows (opposed to regular). 5. occurring or celebrated once in an age or century: the secular games of Rome. 6. going on from age to age; continuing through long ages.